/* SPDX-License-Identifier: GPL-2.0-or-later */

#ifndef IPTSD_GFX_CMAP_HPP
#define IPTSD_GFX_CMAP_HPP

#include "color.hpp"

#include <common/types.hpp>
#include <container/image.hpp>
#include <container/ops.hpp>
#include <math/num.hpp>

#include <algorithm>
#include <cassert>
#include <cmath>
#include <optional>

namespace iptsd::gfx::cmap {

namespace impl {

template <class T> auto normalize(T const &value, std::pair<T, T> range) -> f32
{
	auto v = static_cast<f32>(value - range.first);
	auto n = static_cast<f32>(range.second - range.first);

	return std::clamp(v / n, 0.0f, 1.0f);
}

} /* namespace impl */

class Cmap {
public:
	inline virtual ~Cmap() = default;

	[[nodiscard]] virtual auto map_value(f32 value) const -> Srgb = 0;

	template <class T, class P> auto map(T const &value, std::pair<T, T> range) const -> P;

	template <class T, class P>
	auto map(container::Image<T> const &img,
		 std::optional<std::pair<T, T>> range = std::nullopt) const -> container::Image<P>;

	template <class T, class P>
	void map_into(container::Image<P> &dest, container::Image<T> const &img,
		      std::optional<std::pair<T, T>> range = std::nullopt) const;
};

template <class T, class P> auto Cmap::map(T const &value, std::pair<T, T> range) const -> P
{
	auto m = this->map_value(impl::normalize(value, range));

	return P::from(m.r, m.g, m.b);
}

template <class T, class P>
auto Cmap::map(container::Image<T> const &img, std::optional<std::pair<T, T>> range) const
	-> container::Image<P>
{
	auto out = container::Image<P> {img.size()};

	this->map_into(out, img, range);
	return out;
}

template <class T, class P>
void Cmap::map_into(container::Image<P> &dest, container::Image<T> const &img,
		    std::optional<std::pair<T, T>> range) const
{
	assert(dest.size() == img.size());

	auto r = range.has_value() ? *range : container::ops::minmax(img);

	if (r.second - r.first <= 0) {
		r = {r.first, r.second + 1};
	}

	container::ops::transform(img, dest, [&](auto value) { return this->map<T, P>(value, r); });
}

class Grayscale : public Cmap {
public:
	[[nodiscard]] auto map_value(f32 value) const -> Srgb override;
};

inline auto Grayscale::map_value(f32 value) const -> Srgb
{
	return Srgb::from(value, value, value);
}

/*
 * Cubehelix colormap.
 *
 * See https://arxiv.org/abs/1108.5083.
 * Colormap developed by D. A. Green.
 */
class Cubehelix : public Cmap {
public:
	Cubehelix(f32 start = 0.5f, f32 rotations = -1.5f, f32 hue = 1.2f, f32 gamma = 1.0f);
	[[nodiscard]] auto map_value(f32 value) const -> Srgb override;

private:
	f32 m_start;
	f32 m_rotations;
	f32 m_hue;
	f32 m_gamma;
};

inline Cubehelix::Cubehelix(f32 start, f32 rotations, f32 hue, f32 gamma)
	: m_start {start}, m_rotations {rotations}, m_hue {hue}, m_gamma {gamma}
{
}

inline auto Cubehelix::map_value(f32 value) const -> Srgb
{
	// constants
	auto const rc = -0.14861f;
	auto const rs = 1.78277f;
	auto const gc = -0.29227f;
	auto const gs = -0.90649f;
	auto const bc = 1.97294f;
	auto const bs = 0.00000f;

	// calculation
	auto const v = std::pow(value, m_gamma);

	auto const phi = 2.f * math::num<f32>::pi * (m_start / 3.f + m_rotations * value);
	auto const a = m_hue * v * (1.f - v) / 2.f;

	auto const c_phi = std::cos(phi);
	auto const s_phi = std::sin(phi);

	auto const r = v + a * (rc * c_phi + rs * s_phi);
	auto const g = v + a * (gc * c_phi + gs * s_phi);
	auto const b = v + a * (bc * c_phi + bs * s_phi);

	// need to clip as color may be out of range under certain parameters
	return Srgb::from(std::clamp(r, 0.f, 1.f), std::clamp(g, 0.f, 1.f),
			  std::clamp(b, 0.f, 1.f));
}

inline auto cubehelix(f32 start = 0.5f, f32 rotations = -1.5f, f32 hue = 1.2f, f32 gamma = 1.0f)
	-> Cubehelix
{
	return Cubehelix {start, rotations, hue, gamma};
}

template <std::size_t N> class Lut : public Cmap {
public:
	template <class... Args> Lut(Args &&...t) noexcept;

	[[nodiscard]] auto map_value(f32 value) const -> Srgb override;

private:
	std::array<Srgb, N> m_table;
};

template <std::size_t N>
template <class... Args>
Lut<N>::Lut(Args &&...args) noexcept : m_table {std::forward<Args>(args)...}
{
}

template <std::size_t N> auto Lut<N>::map_value(f32 value) const -> Srgb
{
	auto const n = static_cast<f32>(N - 1);
	auto const v = value * n;

	auto const a = std::floor(v);
	auto const b = std::ceil(v);

	auto const ca = m_table.at(static_cast<std::size_t>(a));
	auto const cb = m_table.at(static_cast<std::size_t>(b));

	return (v - a) * cb + (1.0f - (v - a)) * ca;
}

inline const Grayscale grayscale {};

/*
 * Inferno colormap as used in matplotlib.
 *
 * See <https://github.com/BIDS/colormap> for details.
 * Colormap developed by Nathaniel J. Smith, Stefan van der Walt, and Eric Firing.
 * Licensed under CC0.
 */
inline const Lut<256> inferno {
	Srgb {0.001462, 0.000466, 0.013866}, Srgb {0.002267, 0.001270, 0.018570},
	Srgb {0.003299, 0.002249, 0.024239}, Srgb {0.004547, 0.003392, 0.030909},
	Srgb {0.006006, 0.004692, 0.038558}, Srgb {0.007676, 0.006136, 0.046836},
	Srgb {0.009561, 0.007713, 0.055143}, Srgb {0.011663, 0.009417, 0.063460},
	Srgb {0.013995, 0.011225, 0.071862}, Srgb {0.016561, 0.013136, 0.080282},
	Srgb {0.019373, 0.015133, 0.088767}, Srgb {0.022447, 0.017199, 0.097327},
	Srgb {0.025793, 0.019331, 0.105930}, Srgb {0.029432, 0.021503, 0.114621},
	Srgb {0.033385, 0.023702, 0.123397}, Srgb {0.037668, 0.025921, 0.132232},
	Srgb {0.042253, 0.028139, 0.141141}, Srgb {0.046915, 0.030324, 0.150164},
	Srgb {0.051644, 0.032474, 0.159254}, Srgb {0.056449, 0.034569, 0.168414},
	Srgb {0.061340, 0.036590, 0.177642}, Srgb {0.066331, 0.038504, 0.186962},
	Srgb {0.071429, 0.040294, 0.196354}, Srgb {0.076637, 0.041905, 0.205799},
	Srgb {0.081962, 0.043328, 0.215289}, Srgb {0.087411, 0.044556, 0.224813},
	Srgb {0.092990, 0.045583, 0.234358}, Srgb {0.098702, 0.046402, 0.243904},
	Srgb {0.104551, 0.047008, 0.253430}, Srgb {0.110536, 0.047399, 0.262912},
	Srgb {0.116656, 0.047574, 0.272321}, Srgb {0.122908, 0.047536, 0.281624},
	Srgb {0.129285, 0.047293, 0.290788}, Srgb {0.135778, 0.046856, 0.299776},
	Srgb {0.142378, 0.046242, 0.308553}, Srgb {0.149073, 0.045468, 0.317085},
	Srgb {0.155850, 0.044559, 0.325338}, Srgb {0.162689, 0.043554, 0.333277},
	Srgb {0.169575, 0.042489, 0.340874}, Srgb {0.176493, 0.041402, 0.348111},
	Srgb {0.183429, 0.040329, 0.354971}, Srgb {0.190367, 0.039309, 0.361447},
	Srgb {0.197297, 0.038400, 0.367535}, Srgb {0.204209, 0.037632, 0.373238},
	Srgb {0.211095, 0.037030, 0.378563}, Srgb {0.217949, 0.036615, 0.383522},
	Srgb {0.224763, 0.036405, 0.388129}, Srgb {0.231538, 0.036405, 0.392400},
	Srgb {0.238273, 0.036621, 0.396353}, Srgb {0.244967, 0.037055, 0.400007},
	Srgb {0.251620, 0.037705, 0.403378}, Srgb {0.258234, 0.038571, 0.406485},
	Srgb {0.264810, 0.039647, 0.409345}, Srgb {0.271347, 0.040922, 0.411976},
	Srgb {0.277850, 0.042353, 0.414392}, Srgb {0.284321, 0.043933, 0.416608},
	Srgb {0.290763, 0.045644, 0.418637}, Srgb {0.297178, 0.047470, 0.420491},
	Srgb {0.303568, 0.049396, 0.422182}, Srgb {0.309935, 0.051407, 0.423721},
	Srgb {0.316282, 0.053490, 0.425116}, Srgb {0.322610, 0.055634, 0.426377},
	Srgb {0.328921, 0.057827, 0.427511}, Srgb {0.335217, 0.060060, 0.428524},
	Srgb {0.341500, 0.062325, 0.429425}, Srgb {0.347771, 0.064616, 0.430217},
	Srgb {0.354032, 0.066925, 0.430906}, Srgb {0.360284, 0.069247, 0.431497},
	Srgb {0.366529, 0.071579, 0.431994}, Srgb {0.372768, 0.073915, 0.432400},
	Srgb {0.379001, 0.076253, 0.432719}, Srgb {0.385228, 0.078591, 0.432955},
	Srgb {0.391453, 0.080927, 0.433109}, Srgb {0.397674, 0.083257, 0.433183},
	Srgb {0.403894, 0.085580, 0.433179}, Srgb {0.410113, 0.087896, 0.433098},
	Srgb {0.416331, 0.090203, 0.432943}, Srgb {0.422549, 0.092501, 0.432714},
	Srgb {0.428768, 0.094790, 0.432412}, Srgb {0.434987, 0.097069, 0.432039},
	Srgb {0.441207, 0.099338, 0.431594}, Srgb {0.447428, 0.101597, 0.431080},
	Srgb {0.453651, 0.103848, 0.430498}, Srgb {0.459875, 0.106089, 0.429846},
	Srgb {0.466100, 0.108322, 0.429125}, Srgb {0.472328, 0.110547, 0.428334},
	Srgb {0.478558, 0.112764, 0.427475}, Srgb {0.484789, 0.114974, 0.426548},
	Srgb {0.491022, 0.117179, 0.425552}, Srgb {0.497257, 0.119379, 0.424488},
	Srgb {0.503493, 0.121575, 0.423356}, Srgb {0.509730, 0.123769, 0.422156},
	Srgb {0.515967, 0.125960, 0.420887}, Srgb {0.522206, 0.128150, 0.419549},
	Srgb {0.528444, 0.130341, 0.418142}, Srgb {0.534683, 0.132534, 0.416667},
	Srgb {0.540920, 0.134729, 0.415123}, Srgb {0.547157, 0.136929, 0.413511},
	Srgb {0.553392, 0.139134, 0.411829}, Srgb {0.559624, 0.141346, 0.410078},
	Srgb {0.565854, 0.143567, 0.408258}, Srgb {0.572081, 0.145797, 0.406369},
	Srgb {0.578304, 0.148039, 0.404411}, Srgb {0.584521, 0.150294, 0.402385},
	Srgb {0.590734, 0.152563, 0.400290}, Srgb {0.596940, 0.154848, 0.398125},
	Srgb {0.603139, 0.157151, 0.395891}, Srgb {0.609330, 0.159474, 0.393589},
	Srgb {0.615513, 0.161817, 0.391219}, Srgb {0.621685, 0.164184, 0.388781},
	Srgb {0.627847, 0.166575, 0.386276}, Srgb {0.633998, 0.168992, 0.383704},
	Srgb {0.640135, 0.171438, 0.381065}, Srgb {0.646260, 0.173914, 0.378359},
	Srgb {0.652369, 0.176421, 0.375586}, Srgb {0.658463, 0.178962, 0.372748},
	Srgb {0.664540, 0.181539, 0.369846}, Srgb {0.670599, 0.184153, 0.366879},
	Srgb {0.676638, 0.186807, 0.363849}, Srgb {0.682656, 0.189501, 0.360757},
	Srgb {0.688653, 0.192239, 0.357603}, Srgb {0.694627, 0.195021, 0.354388},
	Srgb {0.700576, 0.197851, 0.351113}, Srgb {0.706500, 0.200728, 0.347777},
	Srgb {0.712396, 0.203656, 0.344383}, Srgb {0.718264, 0.206636, 0.340931},
	Srgb {0.724103, 0.209670, 0.337424}, Srgb {0.729909, 0.212759, 0.333861},
	Srgb {0.735683, 0.215906, 0.330245}, Srgb {0.741423, 0.219112, 0.326576},
	Srgb {0.747127, 0.222378, 0.322856}, Srgb {0.752794, 0.225706, 0.319085},
	Srgb {0.758422, 0.229097, 0.315266}, Srgb {0.764010, 0.232554, 0.311399},
	Srgb {0.769556, 0.236077, 0.307485}, Srgb {0.775059, 0.239667, 0.303526},
	Srgb {0.780517, 0.243327, 0.299523}, Srgb {0.785929, 0.247056, 0.295477},
	Srgb {0.791293, 0.250856, 0.291390}, Srgb {0.796607, 0.254728, 0.287264},
	Srgb {0.801871, 0.258674, 0.283099}, Srgb {0.807082, 0.262692, 0.278898},
	Srgb {0.812239, 0.266786, 0.274661}, Srgb {0.817341, 0.270954, 0.270390},
	Srgb {0.822386, 0.275197, 0.266085}, Srgb {0.827372, 0.279517, 0.261750},
	Srgb {0.832299, 0.283913, 0.257383}, Srgb {0.837165, 0.288385, 0.252988},
	Srgb {0.841969, 0.292933, 0.248564}, Srgb {0.846709, 0.297559, 0.244113},
	Srgb {0.851384, 0.302260, 0.239636}, Srgb {0.855992, 0.307038, 0.235133},
	Srgb {0.860533, 0.311892, 0.230606}, Srgb {0.865006, 0.316822, 0.226055},
	Srgb {0.869409, 0.321827, 0.221482}, Srgb {0.873741, 0.326906, 0.216886},
	Srgb {0.878001, 0.332060, 0.212268}, Srgb {0.882188, 0.337287, 0.207628},
	Srgb {0.886302, 0.342586, 0.202968}, Srgb {0.890341, 0.347957, 0.198286},
	Srgb {0.894305, 0.353399, 0.193584}, Srgb {0.898192, 0.358911, 0.188860},
	Srgb {0.902003, 0.364492, 0.184116}, Srgb {0.905735, 0.370140, 0.179350},
	Srgb {0.909390, 0.375856, 0.174563}, Srgb {0.912966, 0.381636, 0.169755},
	Srgb {0.916462, 0.387481, 0.164924}, Srgb {0.919879, 0.393389, 0.160070},
	Srgb {0.923215, 0.399359, 0.155193}, Srgb {0.926470, 0.405389, 0.150292},
	Srgb {0.929644, 0.411479, 0.145367}, Srgb {0.932737, 0.417627, 0.140417},
	Srgb {0.935747, 0.423831, 0.135440}, Srgb {0.938675, 0.430091, 0.130438},
	Srgb {0.941521, 0.436405, 0.125409}, Srgb {0.944285, 0.442772, 0.120354},
	Srgb {0.946965, 0.449191, 0.115272}, Srgb {0.949562, 0.455660, 0.110164},
	Srgb {0.952075, 0.462178, 0.105031}, Srgb {0.954506, 0.468744, 0.099874},
	Srgb {0.956852, 0.475356, 0.094695}, Srgb {0.959114, 0.482014, 0.089499},
	Srgb {0.961293, 0.488716, 0.084289}, Srgb {0.963387, 0.495462, 0.079073},
	Srgb {0.965397, 0.502249, 0.073859}, Srgb {0.967322, 0.509078, 0.068659},
	Srgb {0.969163, 0.515946, 0.063488}, Srgb {0.970919, 0.522853, 0.058367},
	Srgb {0.972590, 0.529798, 0.053324}, Srgb {0.974176, 0.536780, 0.048392},
	Srgb {0.975677, 0.543798, 0.043618}, Srgb {0.977092, 0.550850, 0.039050},
	Srgb {0.978422, 0.557937, 0.034931}, Srgb {0.979666, 0.565057, 0.031409},
	Srgb {0.980824, 0.572209, 0.028508}, Srgb {0.981895, 0.579392, 0.026250},
	Srgb {0.982881, 0.586606, 0.024661}, Srgb {0.983779, 0.593849, 0.023770},
	Srgb {0.984591, 0.601122, 0.023606}, Srgb {0.985315, 0.608422, 0.024202},
	Srgb {0.985952, 0.615750, 0.025592}, Srgb {0.986502, 0.623105, 0.027814},
	Srgb {0.986964, 0.630485, 0.030908}, Srgb {0.987337, 0.637890, 0.034916},
	Srgb {0.987622, 0.645320, 0.039886}, Srgb {0.987819, 0.652773, 0.045581},
	Srgb {0.987926, 0.660250, 0.051750}, Srgb {0.987945, 0.667748, 0.058329},
	Srgb {0.987874, 0.675267, 0.065257}, Srgb {0.987714, 0.682807, 0.072489},
	Srgb {0.987464, 0.690366, 0.079990}, Srgb {0.987124, 0.697944, 0.087731},
	Srgb {0.986694, 0.705540, 0.095694}, Srgb {0.986175, 0.713153, 0.103863},
	Srgb {0.985566, 0.720782, 0.112229}, Srgb {0.984865, 0.728427, 0.120785},
	Srgb {0.984075, 0.736087, 0.129527}, Srgb {0.983196, 0.743758, 0.138453},
	Srgb {0.982228, 0.751442, 0.147565}, Srgb {0.981173, 0.759135, 0.156863},
	Srgb {0.980032, 0.766837, 0.166353}, Srgb {0.978806, 0.774545, 0.176037},
	Srgb {0.977497, 0.782258, 0.185923}, Srgb {0.976108, 0.789974, 0.196018},
	Srgb {0.974638, 0.797692, 0.206332}, Srgb {0.973088, 0.805409, 0.216877},
	Srgb {0.971468, 0.813122, 0.227658}, Srgb {0.969783, 0.820825, 0.238686},
	Srgb {0.968041, 0.828515, 0.249972}, Srgb {0.966243, 0.836191, 0.261534},
	Srgb {0.964394, 0.843848, 0.273391}, Srgb {0.962517, 0.851476, 0.285546},
	Srgb {0.960626, 0.859069, 0.298010}, Srgb {0.958720, 0.866624, 0.310820},
	Srgb {0.956834, 0.874129, 0.323974}, Srgb {0.954997, 0.881569, 0.337475},
	Srgb {0.953215, 0.888942, 0.351369}, Srgb {0.951546, 0.896226, 0.365627},
	Srgb {0.950018, 0.903409, 0.380271}, Srgb {0.948683, 0.910473, 0.395289},
	Srgb {0.947594, 0.917399, 0.410665}, Srgb {0.946809, 0.924168, 0.426373},
	Srgb {0.946392, 0.930761, 0.442367}, Srgb {0.946403, 0.937159, 0.458592},
	Srgb {0.946903, 0.943348, 0.474970}, Srgb {0.947937, 0.949318, 0.491426},
	Srgb {0.949545, 0.955063, 0.507860}, Srgb {0.951740, 0.960587, 0.524203},
	Srgb {0.954529, 0.965896, 0.540361}, Srgb {0.957896, 0.971003, 0.556275},
	Srgb {0.961812, 0.975924, 0.571925}, Srgb {0.966249, 0.980678, 0.587206},
	Srgb {0.971162, 0.985282, 0.602154}, Srgb {0.976511, 0.989753, 0.616760},
	Srgb {0.982257, 0.994109, 0.631017}, Srgb {0.988362, 0.998364, 0.644924},
};

/*
 * Magma colormap as used in matplotlib.
 *
 * See <https://github.com/BIDS/colormap> for details.
 * Colormap developed by Nathaniel J. Smith, Stefan van der Walt, and Eric Firing.
 * Licensed under CC0.
 */
inline const Lut<256> magma {
	Srgb {0.001462, 0.000466, 0.013866}, Srgb {0.002258, 0.001295, 0.018331},
	Srgb {0.003279, 0.002305, 0.023708}, Srgb {0.004512, 0.003490, 0.029965},
	Srgb {0.005950, 0.004843, 0.037130}, Srgb {0.007588, 0.006356, 0.044973},
	Srgb {0.009426, 0.008022, 0.052844}, Srgb {0.011465, 0.009828, 0.060750},
	Srgb {0.013708, 0.011771, 0.068667}, Srgb {0.016156, 0.013840, 0.076603},
	Srgb {0.018815, 0.016026, 0.084584}, Srgb {0.021692, 0.018320, 0.092610},
	Srgb {0.024792, 0.020715, 0.100676}, Srgb {0.028123, 0.023201, 0.108787},
	Srgb {0.031696, 0.025765, 0.116965}, Srgb {0.035520, 0.028397, 0.125209},
	Srgb {0.039608, 0.031090, 0.133515}, Srgb {0.043830, 0.033830, 0.141886},
	Srgb {0.048062, 0.036607, 0.150327}, Srgb {0.052320, 0.039407, 0.158841},
	Srgb {0.056615, 0.042160, 0.167446}, Srgb {0.060949, 0.044794, 0.176129},
	Srgb {0.065330, 0.047318, 0.184892}, Srgb {0.069764, 0.049726, 0.193735},
	Srgb {0.074257, 0.052017, 0.202660}, Srgb {0.078815, 0.054184, 0.211667},
	Srgb {0.083446, 0.056225, 0.220755}, Srgb {0.088155, 0.058133, 0.229922},
	Srgb {0.092949, 0.059904, 0.239164}, Srgb {0.097833, 0.061531, 0.248477},
	Srgb {0.102815, 0.063010, 0.257854}, Srgb {0.107899, 0.064335, 0.267289},
	Srgb {0.113094, 0.065492, 0.276784}, Srgb {0.118405, 0.066479, 0.286321},
	Srgb {0.123833, 0.067295, 0.295879}, Srgb {0.129380, 0.067935, 0.305443},
	Srgb {0.135053, 0.068391, 0.315000}, Srgb {0.140858, 0.068654, 0.324538},
	Srgb {0.146785, 0.068738, 0.334011}, Srgb {0.152839, 0.068637, 0.343404},
	Srgb {0.159018, 0.068354, 0.352688}, Srgb {0.165308, 0.067911, 0.361816},
	Srgb {0.171713, 0.067305, 0.370771}, Srgb {0.178212, 0.066576, 0.379497},
	Srgb {0.184801, 0.065732, 0.387973}, Srgb {0.191460, 0.064818, 0.396152},
	Srgb {0.198177, 0.063862, 0.404009}, Srgb {0.204935, 0.062907, 0.411514},
	Srgb {0.211718, 0.061992, 0.418647}, Srgb {0.218512, 0.061158, 0.425392},
	Srgb {0.225302, 0.060445, 0.431742}, Srgb {0.232077, 0.059889, 0.437695},
	Srgb {0.238826, 0.059517, 0.443256}, Srgb {0.245543, 0.059352, 0.448436},
	Srgb {0.252220, 0.059415, 0.453248}, Srgb {0.258857, 0.059706, 0.457710},
	Srgb {0.265447, 0.060237, 0.461840}, Srgb {0.271994, 0.060994, 0.465660},
	Srgb {0.278493, 0.061978, 0.469190}, Srgb {0.284951, 0.063168, 0.472451},
	Srgb {0.291366, 0.064553, 0.475462}, Srgb {0.297740, 0.066117, 0.478243},
	Srgb {0.304081, 0.067835, 0.480812}, Srgb {0.310382, 0.069702, 0.483186},
	Srgb {0.316654, 0.071690, 0.485380}, Srgb {0.322899, 0.073782, 0.487408},
	Srgb {0.329114, 0.075972, 0.489287}, Srgb {0.335308, 0.078236, 0.491024},
	Srgb {0.341482, 0.080564, 0.492631}, Srgb {0.347636, 0.082946, 0.494121},
	Srgb {0.353773, 0.085373, 0.495501}, Srgb {0.359898, 0.087831, 0.496778},
	Srgb {0.366012, 0.090314, 0.497960}, Srgb {0.372116, 0.092816, 0.499053},
	Srgb {0.378211, 0.095332, 0.500067}, Srgb {0.384299, 0.097855, 0.501002},
	Srgb {0.390384, 0.100379, 0.501864}, Srgb {0.396467, 0.102902, 0.502658},
	Srgb {0.402548, 0.105420, 0.503386}, Srgb {0.408629, 0.107930, 0.504052},
	Srgb {0.414709, 0.110431, 0.504662}, Srgb {0.420791, 0.112920, 0.505215},
	Srgb {0.426877, 0.115395, 0.505714}, Srgb {0.432967, 0.117855, 0.506160},
	Srgb {0.439062, 0.120298, 0.506555}, Srgb {0.445163, 0.122724, 0.506901},
	Srgb {0.451271, 0.125132, 0.507198}, Srgb {0.457386, 0.127522, 0.507448},
	Srgb {0.463508, 0.129893, 0.507652}, Srgb {0.469640, 0.132245, 0.507809},
	Srgb {0.475780, 0.134577, 0.507921}, Srgb {0.481929, 0.136891, 0.507989},
	Srgb {0.488088, 0.139186, 0.508011}, Srgb {0.494258, 0.141462, 0.507988},
	Srgb {0.500438, 0.143719, 0.507920}, Srgb {0.506629, 0.145958, 0.507806},
	Srgb {0.512831, 0.148179, 0.507648}, Srgb {0.519045, 0.150383, 0.507443},
	Srgb {0.525270, 0.152569, 0.507192}, Srgb {0.531507, 0.154739, 0.506895},
	Srgb {0.537755, 0.156894, 0.506551}, Srgb {0.544015, 0.159033, 0.506159},
	Srgb {0.550287, 0.161158, 0.505719}, Srgb {0.556571, 0.163269, 0.505230},
	Srgb {0.562866, 0.165368, 0.504692}, Srgb {0.569172, 0.167454, 0.504105},
	Srgb {0.575490, 0.169530, 0.503466}, Srgb {0.581819, 0.171596, 0.502777},
	Srgb {0.588158, 0.173652, 0.502035}, Srgb {0.594508, 0.175701, 0.501241},
	Srgb {0.600868, 0.177743, 0.500394}, Srgb {0.607238, 0.179779, 0.499492},
	Srgb {0.613617, 0.181811, 0.498536}, Srgb {0.620005, 0.183840, 0.497524},
	Srgb {0.626401, 0.185867, 0.496456}, Srgb {0.632805, 0.187893, 0.495332},
	Srgb {0.639216, 0.189921, 0.494150}, Srgb {0.645633, 0.191952, 0.492910},
	Srgb {0.652056, 0.193986, 0.491611}, Srgb {0.658483, 0.196027, 0.490253},
	Srgb {0.664915, 0.198075, 0.488836}, Srgb {0.671349, 0.200133, 0.487358},
	Srgb {0.677786, 0.202203, 0.485819}, Srgb {0.684224, 0.204286, 0.484219},
	Srgb {0.690661, 0.206384, 0.482558}, Srgb {0.697098, 0.208501, 0.480835},
	Srgb {0.703532, 0.210638, 0.479049}, Srgb {0.709962, 0.212797, 0.477201},
	Srgb {0.716387, 0.214982, 0.475290}, Srgb {0.722805, 0.217194, 0.473316},
	Srgb {0.729216, 0.219437, 0.471279}, Srgb {0.735616, 0.221713, 0.469180},
	Srgb {0.742004, 0.224025, 0.467018}, Srgb {0.748378, 0.226377, 0.464794},
	Srgb {0.754737, 0.228772, 0.462509}, Srgb {0.761077, 0.231214, 0.460162},
	Srgb {0.767398, 0.233705, 0.457755}, Srgb {0.773695, 0.236249, 0.455289},
	Srgb {0.779968, 0.238851, 0.452765}, Srgb {0.786212, 0.241514, 0.450184},
	Srgb {0.792427, 0.244242, 0.447543}, Srgb {0.798608, 0.247040, 0.444848},
	Srgb {0.804752, 0.249911, 0.442102}, Srgb {0.810855, 0.252861, 0.439305},
	Srgb {0.816914, 0.255895, 0.436461}, Srgb {0.822926, 0.259016, 0.433573},
	Srgb {0.828886, 0.262229, 0.430644}, Srgb {0.834791, 0.265540, 0.427671},
	Srgb {0.840636, 0.268953, 0.424666}, Srgb {0.846416, 0.272473, 0.421631},
	Srgb {0.852126, 0.276106, 0.418573}, Srgb {0.857763, 0.279857, 0.415496},
	Srgb {0.863320, 0.283729, 0.412403}, Srgb {0.868793, 0.287728, 0.409303},
	Srgb {0.874176, 0.291859, 0.406205}, Srgb {0.879464, 0.296125, 0.403118},
	Srgb {0.884651, 0.300530, 0.400047}, Srgb {0.889731, 0.305079, 0.397002},
	Srgb {0.894700, 0.309773, 0.393995}, Srgb {0.899552, 0.314616, 0.391037},
	Srgb {0.904281, 0.319610, 0.388137}, Srgb {0.908884, 0.324755, 0.385308},
	Srgb {0.913354, 0.330052, 0.382563}, Srgb {0.917689, 0.335500, 0.379915},
	Srgb {0.921884, 0.341098, 0.377376}, Srgb {0.925937, 0.346844, 0.374959},
	Srgb {0.929845, 0.352734, 0.372677}, Srgb {0.933606, 0.358764, 0.370541},
	Srgb {0.937221, 0.364929, 0.368567}, Srgb {0.940687, 0.371224, 0.366762},
	Srgb {0.944006, 0.377643, 0.365136}, Srgb {0.947180, 0.384178, 0.363701},
	Srgb {0.950210, 0.390820, 0.362468}, Srgb {0.953099, 0.397563, 0.361438},
	Srgb {0.955849, 0.404400, 0.360619}, Srgb {0.958464, 0.411324, 0.360014},
	Srgb {0.960949, 0.418323, 0.359630}, Srgb {0.963310, 0.425390, 0.359469},
	Srgb {0.965549, 0.432519, 0.359529}, Srgb {0.967671, 0.439703, 0.359810},
	Srgb {0.969680, 0.446936, 0.360311}, Srgb {0.971582, 0.454210, 0.361030},
	Srgb {0.973381, 0.461520, 0.361965}, Srgb {0.975082, 0.468861, 0.363111},
	Srgb {0.976690, 0.476226, 0.364466}, Srgb {0.978210, 0.483612, 0.366025},
	Srgb {0.979645, 0.491014, 0.367783}, Srgb {0.981000, 0.498428, 0.369734},
	Srgb {0.982279, 0.505851, 0.371874}, Srgb {0.983485, 0.513280, 0.374198},
	Srgb {0.984622, 0.520713, 0.376698}, Srgb {0.985693, 0.528148, 0.379371},
	Srgb {0.986700, 0.535582, 0.382210}, Srgb {0.987646, 0.543015, 0.385210},
	Srgb {0.988533, 0.550446, 0.388365}, Srgb {0.989363, 0.557873, 0.391671},
	Srgb {0.990138, 0.565296, 0.395122}, Srgb {0.990871, 0.572706, 0.398714},
	Srgb {0.991558, 0.580107, 0.402441}, Srgb {0.992196, 0.587502, 0.406299},
	Srgb {0.992785, 0.594891, 0.410283}, Srgb {0.993326, 0.602275, 0.414390},
	Srgb {0.993834, 0.609644, 0.418613}, Srgb {0.994309, 0.616999, 0.422950},
	Srgb {0.994738, 0.624350, 0.427397}, Srgb {0.995122, 0.631696, 0.431951},
	Srgb {0.995480, 0.639027, 0.436607}, Srgb {0.995810, 0.646344, 0.441361},
	Srgb {0.996096, 0.653659, 0.446213}, Srgb {0.996341, 0.660969, 0.451160},
	Srgb {0.996580, 0.668256, 0.456192}, Srgb {0.996775, 0.675541, 0.461314},
	Srgb {0.996925, 0.682828, 0.466526}, Srgb {0.997077, 0.690088, 0.471811},
	Srgb {0.997186, 0.697349, 0.477182}, Srgb {0.997254, 0.704611, 0.482635},
	Srgb {0.997325, 0.711848, 0.488154}, Srgb {0.997351, 0.719089, 0.493755},
	Srgb {0.997351, 0.726324, 0.499428}, Srgb {0.997341, 0.733545, 0.505167},
	Srgb {0.997285, 0.740772, 0.510983}, Srgb {0.997228, 0.747981, 0.516859},
	Srgb {0.997138, 0.755190, 0.522806}, Srgb {0.997019, 0.762398, 0.528821},
	Srgb {0.996898, 0.769591, 0.534892}, Srgb {0.996727, 0.776795, 0.541039},
	Srgb {0.996571, 0.783977, 0.547233}, Srgb {0.996369, 0.791167, 0.553499},
	Srgb {0.996162, 0.798348, 0.559820}, Srgb {0.995932, 0.805527, 0.566202},
	Srgb {0.995680, 0.812706, 0.572645}, Srgb {0.995424, 0.819875, 0.579140},
	Srgb {0.995131, 0.827052, 0.585701}, Srgb {0.994851, 0.834213, 0.592307},
	Srgb {0.994524, 0.841387, 0.598983}, Srgb {0.994222, 0.848540, 0.605696},
	Srgb {0.993866, 0.855711, 0.612482}, Srgb {0.993545, 0.862859, 0.619299},
	Srgb {0.993170, 0.870024, 0.626189}, Srgb {0.992831, 0.877168, 0.633109},
	Srgb {0.992440, 0.884330, 0.640099}, Srgb {0.992089, 0.891470, 0.647116},
	Srgb {0.991688, 0.898627, 0.654202}, Srgb {0.991332, 0.905763, 0.661309},
	Srgb {0.990930, 0.912915, 0.668481}, Srgb {0.990570, 0.920049, 0.675675},
	Srgb {0.990175, 0.927196, 0.682926}, Srgb {0.989815, 0.934329, 0.690198},
	Srgb {0.989434, 0.941470, 0.697519}, Srgb {0.989077, 0.948604, 0.704863},
	Srgb {0.988717, 0.955742, 0.712242}, Srgb {0.988367, 0.962878, 0.719649},
	Srgb {0.988033, 0.970012, 0.727077}, Srgb {0.987691, 0.977154, 0.734536},
	Srgb {0.987387, 0.984288, 0.742002}, Srgb {0.987053, 0.991438, 0.749504},
};

/*
 * Plasma colormap as used in matplotlib.
 *
 * See <https://github.com/BIDS/colormap> for details.
 * Colormap developed by Nathaniel J. Smith, Stefan van der Walt, and Eric Firing.
 */
inline const Lut<256> plasma {
	Srgb {0.050383, 0.029803, 0.527975}, Srgb {0.063536, 0.028426, 0.533124},
	Srgb {0.075353, 0.027206, 0.538007}, Srgb {0.086222, 0.026125, 0.542658},
	Srgb {0.096379, 0.025165, 0.547103}, Srgb {0.105980, 0.024309, 0.551368},
	Srgb {0.115124, 0.023556, 0.555468}, Srgb {0.123903, 0.022878, 0.559423},
	Srgb {0.132381, 0.022258, 0.563250}, Srgb {0.140603, 0.021687, 0.566959},
	Srgb {0.148607, 0.021154, 0.570562}, Srgb {0.156421, 0.020651, 0.574065},
	Srgb {0.164070, 0.020171, 0.577478}, Srgb {0.171574, 0.019706, 0.580806},
	Srgb {0.178950, 0.019252, 0.584054}, Srgb {0.186213, 0.018803, 0.587228},
	Srgb {0.193374, 0.018354, 0.590330}, Srgb {0.200445, 0.017902, 0.593364},
	Srgb {0.207435, 0.017442, 0.596333}, Srgb {0.214350, 0.016973, 0.599239},
	Srgb {0.221197, 0.016497, 0.602083}, Srgb {0.227983, 0.016007, 0.604867},
	Srgb {0.234715, 0.015502, 0.607592}, Srgb {0.241396, 0.014979, 0.610259},
	Srgb {0.248032, 0.014439, 0.612868}, Srgb {0.254627, 0.013882, 0.615419},
	Srgb {0.261183, 0.013308, 0.617911}, Srgb {0.267703, 0.012716, 0.620346},
	Srgb {0.274191, 0.012109, 0.622722}, Srgb {0.280648, 0.011488, 0.625038},
	Srgb {0.287076, 0.010855, 0.627295}, Srgb {0.293478, 0.010213, 0.629490},
	Srgb {0.299855, 0.009561, 0.631624}, Srgb {0.306210, 0.008902, 0.633694},
	Srgb {0.312543, 0.008239, 0.635700}, Srgb {0.318856, 0.007576, 0.637640},
	Srgb {0.325150, 0.006915, 0.639512}, Srgb {0.331426, 0.006261, 0.641316},
	Srgb {0.337683, 0.005618, 0.643049}, Srgb {0.343925, 0.004991, 0.644710},
	Srgb {0.350150, 0.004382, 0.646298}, Srgb {0.356359, 0.003798, 0.647810},
	Srgb {0.362553, 0.003243, 0.649245}, Srgb {0.368733, 0.002724, 0.650601},
	Srgb {0.374897, 0.002245, 0.651876}, Srgb {0.381047, 0.001814, 0.653068},
	Srgb {0.387183, 0.001434, 0.654177}, Srgb {0.393304, 0.001114, 0.655199},
	Srgb {0.399411, 0.000859, 0.656133}, Srgb {0.405503, 0.000678, 0.656977},
	Srgb {0.411580, 0.000577, 0.657730}, Srgb {0.417642, 0.000564, 0.658390},
	Srgb {0.423689, 0.000646, 0.658956}, Srgb {0.429719, 0.000831, 0.659425},
	Srgb {0.435734, 0.001127, 0.659797}, Srgb {0.441732, 0.001540, 0.660069},
	Srgb {0.447714, 0.002080, 0.660240}, Srgb {0.453677, 0.002755, 0.660310},
	Srgb {0.459623, 0.003574, 0.660277}, Srgb {0.465550, 0.004545, 0.660139},
	Srgb {0.471457, 0.005678, 0.659897}, Srgb {0.477344, 0.006980, 0.659549},
	Srgb {0.483210, 0.008460, 0.659095}, Srgb {0.489055, 0.010127, 0.658534},
	Srgb {0.494877, 0.011990, 0.657865}, Srgb {0.500678, 0.014055, 0.657088},
	Srgb {0.506454, 0.016333, 0.656202}, Srgb {0.512206, 0.018833, 0.655209},
	Srgb {0.517933, 0.021563, 0.654109}, Srgb {0.523633, 0.024532, 0.652901},
	Srgb {0.529306, 0.027747, 0.651586}, Srgb {0.534952, 0.031217, 0.650165},
	Srgb {0.540570, 0.034950, 0.648640}, Srgb {0.546157, 0.038954, 0.647010},
	Srgb {0.551715, 0.043136, 0.645277}, Srgb {0.557243, 0.047331, 0.643443},
	Srgb {0.562738, 0.051545, 0.641509}, Srgb {0.568201, 0.055778, 0.639477},
	Srgb {0.573632, 0.060028, 0.637349}, Srgb {0.579029, 0.064296, 0.635126},
	Srgb {0.584391, 0.068579, 0.632812}, Srgb {0.589719, 0.072878, 0.630408},
	Srgb {0.595011, 0.077190, 0.627917}, Srgb {0.600266, 0.081516, 0.625342},
	Srgb {0.605485, 0.085854, 0.622686}, Srgb {0.610667, 0.090204, 0.619951},
	Srgb {0.615812, 0.094564, 0.617140}, Srgb {0.620919, 0.098934, 0.614257},
	Srgb {0.625987, 0.103312, 0.611305}, Srgb {0.631017, 0.107699, 0.608287},
	Srgb {0.636008, 0.112092, 0.605205}, Srgb {0.640959, 0.116492, 0.602065},
	Srgb {0.645872, 0.120898, 0.598867}, Srgb {0.650746, 0.125309, 0.595617},
	Srgb {0.655580, 0.129725, 0.592317}, Srgb {0.660374, 0.134144, 0.588971},
	Srgb {0.665129, 0.138566, 0.585582}, Srgb {0.669845, 0.142992, 0.582154},
	Srgb {0.674522, 0.147419, 0.578688}, Srgb {0.679160, 0.151848, 0.575189},
	Srgb {0.683758, 0.156278, 0.571660}, Srgb {0.688318, 0.160709, 0.568103},
	Srgb {0.692840, 0.165141, 0.564522}, Srgb {0.697324, 0.169573, 0.560919},
	Srgb {0.701769, 0.174005, 0.557296}, Srgb {0.706178, 0.178437, 0.553657},
	Srgb {0.710549, 0.182868, 0.550004}, Srgb {0.714883, 0.187299, 0.546338},
	Srgb {0.719181, 0.191729, 0.542663}, Srgb {0.723444, 0.196158, 0.538981},
	Srgb {0.727670, 0.200586, 0.535293}, Srgb {0.731862, 0.205013, 0.531601},
	Srgb {0.736019, 0.209439, 0.527908}, Srgb {0.740143, 0.213864, 0.524216},
	Srgb {0.744232, 0.218288, 0.520524}, Srgb {0.748289, 0.222711, 0.516834},
	Srgb {0.752312, 0.227133, 0.513149}, Srgb {0.756304, 0.231555, 0.509468},
	Srgb {0.760264, 0.235976, 0.505794}, Srgb {0.764193, 0.240396, 0.502126},
	Srgb {0.768090, 0.244817, 0.498465}, Srgb {0.771958, 0.249237, 0.494813},
	Srgb {0.775796, 0.253658, 0.491171}, Srgb {0.779604, 0.258078, 0.487539},
	Srgb {0.783383, 0.262500, 0.483918}, Srgb {0.787133, 0.266922, 0.480307},
	Srgb {0.790855, 0.271345, 0.476706}, Srgb {0.794549, 0.275770, 0.473117},
	Srgb {0.798216, 0.280197, 0.469538}, Srgb {0.801855, 0.284626, 0.465971},
	Srgb {0.805467, 0.289057, 0.462415}, Srgb {0.809052, 0.293491, 0.458870},
	Srgb {0.812612, 0.297928, 0.455338}, Srgb {0.816144, 0.302368, 0.451816},
	Srgb {0.819651, 0.306812, 0.448306}, Srgb {0.823132, 0.311261, 0.444806},
	Srgb {0.826588, 0.315714, 0.441316}, Srgb {0.830018, 0.320172, 0.437836},
	Srgb {0.833422, 0.324635, 0.434366}, Srgb {0.836801, 0.329105, 0.430905},
	Srgb {0.840155, 0.333580, 0.427455}, Srgb {0.843484, 0.338062, 0.424013},
	Srgb {0.846788, 0.342551, 0.420579}, Srgb {0.850066, 0.347048, 0.417153},
	Srgb {0.853319, 0.351553, 0.413734}, Srgb {0.856547, 0.356066, 0.410322},
	Srgb {0.859750, 0.360588, 0.406917}, Srgb {0.862927, 0.365119, 0.403519},
	Srgb {0.866078, 0.369660, 0.400126}, Srgb {0.869203, 0.374212, 0.396738},
	Srgb {0.872303, 0.378774, 0.393355}, Srgb {0.875376, 0.383347, 0.389976},
	Srgb {0.878423, 0.387932, 0.386600}, Srgb {0.881443, 0.392529, 0.383229},
	Srgb {0.884436, 0.397139, 0.379860}, Srgb {0.887402, 0.401762, 0.376494},
	Srgb {0.890340, 0.406398, 0.373130}, Srgb {0.893250, 0.411048, 0.369768},
	Srgb {0.896131, 0.415712, 0.366407}, Srgb {0.898984, 0.420392, 0.363047},
	Srgb {0.901807, 0.425087, 0.359688}, Srgb {0.904601, 0.429797, 0.356329},
	Srgb {0.907365, 0.434524, 0.352970}, Srgb {0.910098, 0.439268, 0.349610},
	Srgb {0.912800, 0.444029, 0.346251}, Srgb {0.915471, 0.448807, 0.342890},
	Srgb {0.918109, 0.453603, 0.339529}, Srgb {0.920714, 0.458417, 0.336166},
	Srgb {0.923287, 0.463251, 0.332801}, Srgb {0.925825, 0.468103, 0.329435},
	Srgb {0.928329, 0.472975, 0.326067}, Srgb {0.930798, 0.477867, 0.322697},
	Srgb {0.933232, 0.482780, 0.319325}, Srgb {0.935630, 0.487712, 0.315952},
	Srgb {0.937990, 0.492667, 0.312575}, Srgb {0.940313, 0.497642, 0.309197},
	Srgb {0.942598, 0.502639, 0.305816}, Srgb {0.944844, 0.507658, 0.302433},
	Srgb {0.947051, 0.512699, 0.299049}, Srgb {0.949217, 0.517763, 0.295662},
	Srgb {0.951344, 0.522850, 0.292275}, Srgb {0.953428, 0.527960, 0.288883},
	Srgb {0.955470, 0.533093, 0.285490}, Srgb {0.957469, 0.538250, 0.282096},
	Srgb {0.959424, 0.543431, 0.278701}, Srgb {0.961336, 0.548636, 0.275305},
	Srgb {0.963203, 0.553865, 0.271909}, Srgb {0.965024, 0.559118, 0.268513},
	Srgb {0.966798, 0.564396, 0.265118}, Srgb {0.968526, 0.569700, 0.261721},
	Srgb {0.970205, 0.575028, 0.258325}, Srgb {0.971835, 0.580382, 0.254931},
	Srgb {0.973416, 0.585761, 0.251540}, Srgb {0.974947, 0.591165, 0.248151},
	Srgb {0.976428, 0.596595, 0.244767}, Srgb {0.977856, 0.602051, 0.241387},
	Srgb {0.979233, 0.607532, 0.238013}, Srgb {0.980556, 0.613039, 0.234646},
	Srgb {0.981826, 0.618572, 0.231287}, Srgb {0.983041, 0.624131, 0.227937},
	Srgb {0.984199, 0.629718, 0.224595}, Srgb {0.985301, 0.635330, 0.221265},
	Srgb {0.986345, 0.640969, 0.217948}, Srgb {0.987332, 0.646633, 0.214648},
	Srgb {0.988260, 0.652325, 0.211364}, Srgb {0.989128, 0.658043, 0.208100},
	Srgb {0.989935, 0.663787, 0.204859}, Srgb {0.990681, 0.669558, 0.201642},
	Srgb {0.991365, 0.675355, 0.198453}, Srgb {0.991985, 0.681179, 0.195295},
	Srgb {0.992541, 0.687030, 0.192170}, Srgb {0.993032, 0.692907, 0.189084},
	Srgb {0.993456, 0.698810, 0.186041}, Srgb {0.993814, 0.704741, 0.183043},
	Srgb {0.994103, 0.710698, 0.180097}, Srgb {0.994324, 0.716681, 0.177208},
	Srgb {0.994474, 0.722691, 0.174381}, Srgb {0.994553, 0.728728, 0.171622},
	Srgb {0.994561, 0.734791, 0.168938}, Srgb {0.994495, 0.740880, 0.166335},
	Srgb {0.994355, 0.746995, 0.163821}, Srgb {0.994141, 0.753137, 0.161404},
	Srgb {0.993851, 0.759304, 0.159092}, Srgb {0.993482, 0.765499, 0.156891},
	Srgb {0.993033, 0.771720, 0.154808}, Srgb {0.992505, 0.777967, 0.152855},
	Srgb {0.991897, 0.784239, 0.151042}, Srgb {0.991209, 0.790537, 0.149377},
	Srgb {0.990439, 0.796859, 0.147870}, Srgb {0.989587, 0.803205, 0.146529},
	Srgb {0.988648, 0.809579, 0.145357}, Srgb {0.987621, 0.815978, 0.144363},
	Srgb {0.986509, 0.822401, 0.143557}, Srgb {0.985314, 0.828846, 0.142945},
	Srgb {0.984031, 0.835315, 0.142528}, Srgb {0.982653, 0.841812, 0.142303},
	Srgb {0.981190, 0.848329, 0.142279}, Srgb {0.979644, 0.854866, 0.142453},
	Srgb {0.977995, 0.861432, 0.142808}, Srgb {0.976265, 0.868016, 0.143351},
	Srgb {0.974443, 0.874622, 0.144061}, Srgb {0.972530, 0.881250, 0.144923},
	Srgb {0.970533, 0.887896, 0.145919}, Srgb {0.968443, 0.894564, 0.147014},
	Srgb {0.966271, 0.901249, 0.148180}, Srgb {0.964021, 0.907950, 0.149370},
	Srgb {0.961681, 0.914672, 0.150520}, Srgb {0.959276, 0.921407, 0.151566},
	Srgb {0.956808, 0.928152, 0.152409}, Srgb {0.954287, 0.934908, 0.152921},
	Srgb {0.951726, 0.941671, 0.152925}, Srgb {0.949151, 0.948435, 0.152178},
	Srgb {0.946602, 0.955190, 0.150328}, Srgb {0.944152, 0.961916, 0.146861},
	Srgb {0.941896, 0.968590, 0.140956}, Srgb {0.940015, 0.975158, 0.131326},
};

/*
 * Viridis colormap as used in matplotlib.
 *
 * See <https://github.com/BIDS/colormap> for details.
 * Colormap developed by Nathaniel J. Smith, Stefan van der Walt, and Eric Firing.
 * Licensed under CC0.
 */
inline const Lut<256> viridis {
	Srgb {0.267004, 0.004874, 0.329415}, Srgb {0.268510, 0.009605, 0.335427},
	Srgb {0.269944, 0.014625, 0.341379}, Srgb {0.271305, 0.019942, 0.347269},
	Srgb {0.272594, 0.025563, 0.353093}, Srgb {0.273809, 0.031497, 0.358853},
	Srgb {0.274952, 0.037752, 0.364543}, Srgb {0.276022, 0.044167, 0.370164},
	Srgb {0.277018, 0.050344, 0.375715}, Srgb {0.277941, 0.056324, 0.381191},
	Srgb {0.278791, 0.062145, 0.386592}, Srgb {0.279566, 0.067836, 0.391917},
	Srgb {0.280267, 0.073417, 0.397163}, Srgb {0.280894, 0.078907, 0.402329},
	Srgb {0.281446, 0.084320, 0.407414}, Srgb {0.281924, 0.089666, 0.412415},
	Srgb {0.282327, 0.094955, 0.417331}, Srgb {0.282656, 0.100196, 0.422160},
	Srgb {0.282910, 0.105393, 0.426902}, Srgb {0.283091, 0.110553, 0.431554},
	Srgb {0.283197, 0.115680, 0.436115}, Srgb {0.283229, 0.120777, 0.440584},
	Srgb {0.283187, 0.125848, 0.444960}, Srgb {0.283072, 0.130895, 0.449241},
	Srgb {0.282884, 0.135920, 0.453427}, Srgb {0.282623, 0.140926, 0.457517},
	Srgb {0.282290, 0.145912, 0.461510}, Srgb {0.281887, 0.150881, 0.465405},
	Srgb {0.281412, 0.155834, 0.469201}, Srgb {0.280868, 0.160771, 0.472899},
	Srgb {0.280255, 0.165693, 0.476498}, Srgb {0.279574, 0.170599, 0.479997},
	Srgb {0.278826, 0.175490, 0.483397}, Srgb {0.278012, 0.180367, 0.486697},
	Srgb {0.277134, 0.185228, 0.489898}, Srgb {0.276194, 0.190074, 0.493001},
	Srgb {0.275191, 0.194905, 0.496005}, Srgb {0.274128, 0.199721, 0.498911},
	Srgb {0.273006, 0.204520, 0.501721}, Srgb {0.271828, 0.209303, 0.504434},
	Srgb {0.270595, 0.214069, 0.507052}, Srgb {0.269308, 0.218818, 0.509577},
	Srgb {0.267968, 0.223549, 0.512008}, Srgb {0.266580, 0.228262, 0.514349},
	Srgb {0.265145, 0.232956, 0.516599}, Srgb {0.263663, 0.237631, 0.518762},
	Srgb {0.262138, 0.242286, 0.520837}, Srgb {0.260571, 0.246922, 0.522828},
	Srgb {0.258965, 0.251537, 0.524736}, Srgb {0.257322, 0.256130, 0.526563},
	Srgb {0.255645, 0.260703, 0.528312}, Srgb {0.253935, 0.265254, 0.529983},
	Srgb {0.252194, 0.269783, 0.531579}, Srgb {0.250425, 0.274290, 0.533103},
	Srgb {0.248629, 0.278775, 0.534556}, Srgb {0.246811, 0.283237, 0.535941},
	Srgb {0.244972, 0.287675, 0.537260}, Srgb {0.243113, 0.292092, 0.538516},
	Srgb {0.241237, 0.296485, 0.539709}, Srgb {0.239346, 0.300855, 0.540844},
	Srgb {0.237441, 0.305202, 0.541921}, Srgb {0.235526, 0.309527, 0.542944},
	Srgb {0.233603, 0.313828, 0.543914}, Srgb {0.231674, 0.318106, 0.544834},
	Srgb {0.229739, 0.322361, 0.545706}, Srgb {0.227802, 0.326594, 0.546532},
	Srgb {0.225863, 0.330805, 0.547314}, Srgb {0.223925, 0.334994, 0.548053},
	Srgb {0.221989, 0.339161, 0.548752}, Srgb {0.220057, 0.343307, 0.549413},
	Srgb {0.218130, 0.347432, 0.550038}, Srgb {0.216210, 0.351535, 0.550627},
	Srgb {0.214298, 0.355619, 0.551184}, Srgb {0.212395, 0.359683, 0.551710},
	Srgb {0.210503, 0.363727, 0.552206}, Srgb {0.208623, 0.367752, 0.552675},
	Srgb {0.206756, 0.371758, 0.553117}, Srgb {0.204903, 0.375746, 0.553533},
	Srgb {0.203063, 0.379716, 0.553925}, Srgb {0.201239, 0.383670, 0.554294},
	Srgb {0.199430, 0.387607, 0.554642}, Srgb {0.197636, 0.391528, 0.554969},
	Srgb {0.195860, 0.395433, 0.555276}, Srgb {0.194100, 0.399323, 0.555565},
	Srgb {0.192357, 0.403199, 0.555836}, Srgb {0.190631, 0.407061, 0.556089},
	Srgb {0.188923, 0.410910, 0.556326}, Srgb {0.187231, 0.414746, 0.556547},
	Srgb {0.185556, 0.418570, 0.556753}, Srgb {0.183898, 0.422383, 0.556944},
	Srgb {0.182256, 0.426184, 0.557120}, Srgb {0.180629, 0.429975, 0.557282},
	Srgb {0.179019, 0.433756, 0.557430}, Srgb {0.177423, 0.437527, 0.557565},
	Srgb {0.175841, 0.441290, 0.557685}, Srgb {0.174274, 0.445044, 0.557792},
	Srgb {0.172719, 0.448791, 0.557885}, Srgb {0.171176, 0.452530, 0.557965},
	Srgb {0.169646, 0.456262, 0.558030}, Srgb {0.168126, 0.459988, 0.558082},
	Srgb {0.166617, 0.463708, 0.558119}, Srgb {0.165117, 0.467423, 0.558141},
	Srgb {0.163625, 0.471133, 0.558148}, Srgb {0.162142, 0.474838, 0.558140},
	Srgb {0.160665, 0.478540, 0.558115}, Srgb {0.159194, 0.482237, 0.558073},
	Srgb {0.157729, 0.485932, 0.558013}, Srgb {0.156270, 0.489624, 0.557936},
	Srgb {0.154815, 0.493313, 0.557840}, Srgb {0.153364, 0.497000, 0.557724},
	Srgb {0.151918, 0.500685, 0.557587}, Srgb {0.150476, 0.504369, 0.557430},
	Srgb {0.149039, 0.508051, 0.557250}, Srgb {0.147607, 0.511733, 0.557049},
	Srgb {0.146180, 0.515413, 0.556823}, Srgb {0.144759, 0.519093, 0.556572},
	Srgb {0.143343, 0.522773, 0.556295}, Srgb {0.141935, 0.526453, 0.555991},
	Srgb {0.140536, 0.530132, 0.555659}, Srgb {0.139147, 0.533812, 0.555298},
	Srgb {0.137770, 0.537492, 0.554906}, Srgb {0.136408, 0.541173, 0.554483},
	Srgb {0.135066, 0.544853, 0.554029}, Srgb {0.133743, 0.548535, 0.553541},
	Srgb {0.132444, 0.552216, 0.553018}, Srgb {0.131172, 0.555899, 0.552459},
	Srgb {0.129933, 0.559582, 0.551864}, Srgb {0.128729, 0.563265, 0.551229},
	Srgb {0.127568, 0.566949, 0.550556}, Srgb {0.126453, 0.570633, 0.549841},
	Srgb {0.125394, 0.574318, 0.549086}, Srgb {0.124395, 0.578002, 0.548287},
	Srgb {0.123463, 0.581687, 0.547445}, Srgb {0.122606, 0.585371, 0.546557},
	Srgb {0.121831, 0.589055, 0.545623}, Srgb {0.121148, 0.592739, 0.544641},
	Srgb {0.120565, 0.596422, 0.543611}, Srgb {0.120092, 0.600104, 0.542530},
	Srgb {0.119738, 0.603785, 0.541400}, Srgb {0.119512, 0.607464, 0.540218},
	Srgb {0.119423, 0.611141, 0.538982}, Srgb {0.119483, 0.614817, 0.537692},
	Srgb {0.119699, 0.618490, 0.536347}, Srgb {0.120081, 0.622161, 0.534946},
	Srgb {0.120638, 0.625828, 0.533488}, Srgb {0.121380, 0.629492, 0.531973},
	Srgb {0.122312, 0.633153, 0.530398}, Srgb {0.123444, 0.636809, 0.528763},
	Srgb {0.124780, 0.640461, 0.527068}, Srgb {0.126326, 0.644107, 0.525311},
	Srgb {0.128087, 0.647749, 0.523491}, Srgb {0.130067, 0.651384, 0.521608},
	Srgb {0.132268, 0.655014, 0.519661}, Srgb {0.134692, 0.658636, 0.517649},
	Srgb {0.137339, 0.662252, 0.515571}, Srgb {0.140210, 0.665859, 0.513427},
	Srgb {0.143303, 0.669459, 0.511215}, Srgb {0.146616, 0.673050, 0.508936},
	Srgb {0.150148, 0.676631, 0.506589}, Srgb {0.153894, 0.680203, 0.504172},
	Srgb {0.157851, 0.683765, 0.501686}, Srgb {0.162016, 0.687316, 0.499129},
	Srgb {0.166383, 0.690856, 0.496502}, Srgb {0.170948, 0.694384, 0.493803},
	Srgb {0.175707, 0.697900, 0.491033}, Srgb {0.180653, 0.701402, 0.488189},
	Srgb {0.185783, 0.704891, 0.485273}, Srgb {0.191090, 0.708366, 0.482284},
	Srgb {0.196571, 0.711827, 0.479221}, Srgb {0.202219, 0.715272, 0.476084},
	Srgb {0.208030, 0.718701, 0.472873}, Srgb {0.214000, 0.722114, 0.469588},
	Srgb {0.220124, 0.725509, 0.466226}, Srgb {0.226397, 0.728888, 0.462789},
	Srgb {0.232815, 0.732247, 0.459277}, Srgb {0.239374, 0.735588, 0.455688},
	Srgb {0.246070, 0.738910, 0.452024}, Srgb {0.252899, 0.742211, 0.448284},
	Srgb {0.259857, 0.745492, 0.444467}, Srgb {0.266941, 0.748751, 0.440573},
	Srgb {0.274149, 0.751988, 0.436601}, Srgb {0.281477, 0.755203, 0.432552},
	Srgb {0.288921, 0.758394, 0.428426}, Srgb {0.296479, 0.761561, 0.424223},
	Srgb {0.304148, 0.764704, 0.419943}, Srgb {0.311925, 0.767822, 0.415586},
	Srgb {0.319809, 0.770914, 0.411152}, Srgb {0.327796, 0.773980, 0.406640},
	Srgb {0.335885, 0.777018, 0.402049}, Srgb {0.344074, 0.780029, 0.397381},
	Srgb {0.352360, 0.783011, 0.392636}, Srgb {0.360741, 0.785964, 0.387814},
	Srgb {0.369214, 0.788888, 0.382914}, Srgb {0.377779, 0.791781, 0.377939},
	Srgb {0.386433, 0.794644, 0.372886}, Srgb {0.395174, 0.797475, 0.367757},
	Srgb {0.404001, 0.800275, 0.362552}, Srgb {0.412913, 0.803041, 0.357269},
	Srgb {0.421908, 0.805774, 0.351910}, Srgb {0.430983, 0.808473, 0.346476},
	Srgb {0.440137, 0.811138, 0.340967}, Srgb {0.449368, 0.813768, 0.335384},
	Srgb {0.458674, 0.816363, 0.329727}, Srgb {0.468053, 0.818921, 0.323998},
	Srgb {0.477504, 0.821444, 0.318195}, Srgb {0.487026, 0.823929, 0.312321},
	Srgb {0.496615, 0.826376, 0.306377}, Srgb {0.506271, 0.828786, 0.300362},
	Srgb {0.515992, 0.831158, 0.294279}, Srgb {0.525776, 0.833491, 0.288127},
	Srgb {0.535621, 0.835785, 0.281908}, Srgb {0.545524, 0.838039, 0.275626},
	Srgb {0.555484, 0.840254, 0.269281}, Srgb {0.565498, 0.842430, 0.262877},
	Srgb {0.575563, 0.844566, 0.256415}, Srgb {0.585678, 0.846661, 0.249897},
	Srgb {0.595839, 0.848717, 0.243329}, Srgb {0.606045, 0.850733, 0.236712},
	Srgb {0.616293, 0.852709, 0.230052}, Srgb {0.626579, 0.854645, 0.223353},
	Srgb {0.636902, 0.856542, 0.216620}, Srgb {0.647257, 0.858400, 0.209861},
	Srgb {0.657642, 0.860219, 0.203082}, Srgb {0.668054, 0.861999, 0.196293},
	Srgb {0.678489, 0.863742, 0.189503}, Srgb {0.688944, 0.865448, 0.182725},
	Srgb {0.699415, 0.867117, 0.175971}, Srgb {0.709898, 0.868751, 0.169257},
	Srgb {0.720391, 0.870350, 0.162603}, Srgb {0.730889, 0.871916, 0.156029},
	Srgb {0.741388, 0.873449, 0.149561}, Srgb {0.751884, 0.874951, 0.143228},
	Srgb {0.762373, 0.876424, 0.137064}, Srgb {0.772852, 0.877868, 0.131109},
	Srgb {0.783315, 0.879285, 0.125405}, Srgb {0.793760, 0.880678, 0.120005},
	Srgb {0.804182, 0.882046, 0.114965}, Srgb {0.814576, 0.883393, 0.110347},
	Srgb {0.824940, 0.884720, 0.106217}, Srgb {0.835270, 0.886029, 0.102646},
	Srgb {0.845561, 0.887322, 0.099702}, Srgb {0.855810, 0.888601, 0.097452},
	Srgb {0.866013, 0.889868, 0.095953}, Srgb {0.876168, 0.891125, 0.095250},
	Srgb {0.886271, 0.892374, 0.095374}, Srgb {0.896320, 0.893616, 0.096335},
	Srgb {0.906311, 0.894855, 0.098125}, Srgb {0.916242, 0.896091, 0.100717},
	Srgb {0.926106, 0.897330, 0.104071}, Srgb {0.935904, 0.898570, 0.108131},
	Srgb {0.945636, 0.899815, 0.112838}, Srgb {0.955300, 0.901065, 0.118128},
	Srgb {0.964894, 0.902323, 0.123941}, Srgb {0.974417, 0.903590, 0.130215},
	Srgb {0.983868, 0.904867, 0.136897}, Srgb {0.993248, 0.906157, 0.143936},
};

} /* namespace iptsd::gfx::cmap */

#endif /* IPTSD_GFX_CMAP_HPP */
